International Journal of Fracture最新文献_第8页

Correction: Editor's note on Peridynamic model for chloride diffusion–reaction in concrete reflecting mesostructure characteristic 更正：关于反映中间结构特征的混凝土中氯离子扩散反应的周动力模型的编辑说明

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-04-15 DOI: 10.1007/s10704-024-00791-6

引用次数: 0

Fourth order phase field modeling of brittle fracture by Natural element method 用自然元素法建立脆性断裂的四阶相场模型

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-04-10 DOI: 10.1007/s10704-024-00773-8

P. Aurojyoti, A. Rajagopal

{"title":"Fourth order phase field modeling of brittle fracture by Natural element method","authors":"P. Aurojyoti, A. Rajagopal","doi":"10.1007/s10704-024-00773-8","DOIUrl":"10.1007/s10704-024-00773-8","url":null,"abstract":"<div><p>Contrary to the second-order Phase field model (PFM) of fracture, fourth-order PFM provides a more precise representation of the crack surface by incorporating higher-order derivatives (curvature) of the phase-field order parameter in the so-called crack density functional. As a result, in a finite element setting, the weak form of the phase-field governing differential equation requires <span>(C^1)</span> continuity in the basis function. <span>(C^0)</span> Sibson interpolants or Natural element interpolants are obtained by the ratio of area traced by the second-order Voronoi cell over the first-order Voronoi cells, which is based on the natural neighbor of a nodal point set. <span>(C^1)</span> Sibson interpolants are obtained by degree elevating the evaluated <span>(C^0)</span> interpolants in the Bernstein-Bezier patch of a cubic simplex. For better computational efficiency while accounting only for the tensile part for driving fracture, a hybrid PFM is adopted. In this work, the numerical implementation of higher-order PFM with <span>(C^1)</span> Sibson interpolants along with some benchmark examples are presented to showcase the performance of this method for simulating fracture in brittle materials.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"247 2","pages":"203 - 224"},"PeriodicalIF":2.2,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Void growth and coalescence in sigmoidal hardening porous plastic solids under tensile and shear loading 在拉伸和剪切载荷作用下，西格玛硬化多孔塑料固体中的空隙增长和凝聚

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-04-05 DOI: 10.1007/s10704-024-00768-5

Showren Datta, Shailendra P. Joshi

{"title":"Void growth and coalescence in sigmoidal hardening porous plastic solids under tensile and shear loading","authors":"Showren Datta, Shailendra P. Joshi","doi":"10.1007/s10704-024-00768-5","DOIUrl":"10.1007/s10704-024-00768-5","url":null,"abstract":"<div><p>This work examines the void growth and coalescence in isotropic porous elastoplastic solids with sigmoidal material hardening via finite element three-dimensional unit cell calculations. The investigations are carried out for various combinations of stress triaxiality ratio (<span>({mathcal {T}})</span>) and Lode parameter (<span>({mathcal {L}})</span>) and consider a wide range of sigmoidal hardening behaviors with nominal hardening rates spanning two decades. The effect of <span>({mathcal {L}})</span> is considered in the presence and in the absence of imposed shear stress. Our findings reveal that depending on the nature of sigmoidal hardening the cell stress-strain responses may exhibit two distinct transitions with increasing stress triaxiality (<span>({mathcal {T}})</span>). Below a certain lower threshold triaxiality the stress-strain responses are sigmoidal, while above a certain higher triaxiality they exhibit softening immediately following the yield. Between these threshold levels, the responses exhibit an apparent classical rather than sigmoidal strain hardening. The sigmoidal hardening characteristics also influence porosity evolution, which may stagnate before a runaway growth up to final failure. For a given <span>({mathcal {L}})</span>, an imposed shear stress adversely affects the material ductility at moderate <span>({mathcal {T}})</span> whereas at high <span>({mathcal {T}})</span> it improves the ductility. Finally, we discuss the role of material hardening and stress state on the <i>residual cell ductility</i> defined as strain to final failure beyond the onset of coalescence.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"247 2","pages":"167 - 182"},"PeriodicalIF":2.2,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cavitation and crack nucleation in thin hyperelastic adhesives 超弹性薄型粘合剂中的气蚀和裂纹成核现象

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-04-04 DOI: 10.1007/s10704-024-00776-5

Florian Rheinschmidt, Michael Drass, Jens Schneider, Philipp L. Rosendahl

{"title":"Cavitation and crack nucleation in thin hyperelastic adhesives","authors":"Florian Rheinschmidt, Michael Drass, Jens Schneider, Philipp L. Rosendahl","doi":"10.1007/s10704-024-00776-5","DOIUrl":"10.1007/s10704-024-00776-5","url":null,"abstract":"<div><p>The present study investigates in the failure of adhesive bondings with structural silicone sealants. Point connectors of two circular metal adherends bonded with DOWSIL™ TSSA are subjected to tensile loading. We formulate and use a constitutive law that captures volumetric softening owing to the formation of cavities. Therein, cavitation is considered a process of elastic instability which is homogenized with a pseudo-elastic approach. Ultimate failure initiating from the free edges is predicted employing the framework of finite fracture mechanics. The concept requires both a strength-of-materials condition and a fracture mechanics condition to be satisfied simultaneously for crack nucleation. For the former, we use a novel multiaxial equivalent strain criterion. For the latter, we employ literature values of the fracture toughness of DOWSIL™ TSSA . The predicted onset of cavitation and ultimate failure loads are in good agreement with our experiments. The proposed model provides initial crack lengths that allow for the derivation of simple engineering models for both initial designs and proof of structural integrity while simultaneously extending the range of usability of the structural silicone compared to standardized approaches.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"247 1","pages":"33 - 49"},"PeriodicalIF":2.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10704-024-00776-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elastic-plastic crack-tip field in hydride forming metals under hydrogen chemical equilibrium 氢化学平衡条件下氢化物形成金属中的弹塑性裂纹尖端场

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-04-03 DOI: 10.1007/s10704-024-00766-7

A. G. Varias

引用次数: 0

Selective unidirectional median crack propagation in glass achieved by mechanical scribing 通过机械划线实现玻璃中选择性单向中值裂纹扩展

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-04-03 DOI: 10.1007/s10704-024-00775-6

Sho Itoh, Souta Matsusaka, Hirofumi Hidai, Kumiko Murakami, Mitsuru Kitaichi

引用次数: 0

Three dimensional effects on mode I notch tip fields in a textured Magnesium alloy 纹理镁合金中模式 I 缺口尖端场的三维效应

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-03-29 DOI: 10.1007/s10704-024-00774-7

S. Arjun Sreedhar, R. Narasimhan

{"title":"Three dimensional effects on mode I notch tip fields in a textured Magnesium alloy","authors":"S. Arjun Sreedhar, R. Narasimhan","doi":"10.1007/s10704-024-00774-7","DOIUrl":"10.1007/s10704-024-00774-7","url":null,"abstract":"<div><p>The objective of this work is to investigate the three-dimensional nature of stationary mode I notch tip fields in a basal-textured magnesium alloy. To this end, crystal plasticity based finite element analyses are performed pertaining to a four-point bend fracture specimen for two notch orientations. In the first orientation, the notch and line perpendicular to it are taken parallel to transverse and rolling directions, respectively, while in the second, they are chosen along normal and transverse directions. An additional simulation is performed corresponding to an isotropic plastic solid obeying the von Mises yield condition. The macroscopic results from the simulations agree well with an experimental study conducted pertaining to the first orientation. A pronounced thickness variation in stresses is perceived up to a radial distance of about 0.4 times specimen thickness from the tip. The stresses and plastic strains near the tip on the specimen mid-plane are higher for the ND-TD orientation, whereas on the surface they are more for the TD-RD case. In the former, multiple slip systems along with profuse tensile twinning is observed near the tip, whereas prismatic slip is preponderant for the latter. The strong anisotropy of this alloy manifests in terms of plastic zone shape and size, near-tip plastic strain/slip distributions and plane strain constraint ratio.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"247 1","pages":"1 - 24"},"PeriodicalIF":2.2,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140368215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Material informatics and impact of multicollinearity on regression model for fatigue strength of steel 材料信息学和多重共线性对钢疲劳强度回归模型的影响

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-03-29 DOI: 10.1007/s10704-024-00765-8

Mrinal Kumar Adhikary, Archana Bora

{"title":"Material informatics and impact of multicollinearity on regression model for fatigue strength of steel","authors":"Mrinal Kumar Adhikary, Archana Bora","doi":"10.1007/s10704-024-00765-8","DOIUrl":"10.1007/s10704-024-00765-8","url":null,"abstract":"<div><p>In the last few decades, the advancements made in material characterisation equipment and physics-based multiscale material modeling have generated vast database in the field of Material Science and Engineering. This has inspired material innovators to attempt predicting mechanical properties of synthesised materials using big-data so as to reduce the cost, time and effort for materials innovation. However, the impact of collinerarity has always been a matter of concern in emperical research, specially in such predictions of mechanical properties. In the present work, we revisit NIMS database for steel and study the effect of multicollinearity on regression based models for predicting fatigue strength for the material. We use an iterative scheme to isolate highly correlated parameters contributing in determination of the fatigue strength of the steel. We then construct a regression model using only the non-correlated parameters to make the model more efficient computationally. Our results show that the regression model built after consideration of multicollinearity of the variables provide better performance in comparison with regression model built without consideration of the same.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"246 1","pages":"37 - 46"},"PeriodicalIF":2.2,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140322445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristics of crack growth in brittle solids with the effects of material heterogeneity and multi-crack interaction 材料异质性和多裂纹相互作用影响下脆性固体裂纹生长的特征

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-03-27 DOI: 10.1007/s10704-024-00771-w

Luyu Wang, Zhen-Yu Yin, Weizhong Chen

{"title":"Characteristics of crack growth in brittle solids with the effects of material heterogeneity and multi-crack interaction","authors":"Luyu Wang, Zhen-Yu Yin, Weizhong Chen","doi":"10.1007/s10704-024-00771-w","DOIUrl":"10.1007/s10704-024-00771-w","url":null,"abstract":"<div><p>Despite the extensive research on crack propagation in brittle solids, numerous unexplored problems still necessitate in-depth study. In this work, we focus on numerical modeling of multi-crack growth, aiming to explore the effect of material heterogeneity and multi-crack interaction on this process. To do this, an improved singular-finite element method (singular-FEM) is proposed with incorporation of heterogeneity and crack interaction. An efficient algorithm is proposed for simulating multi-crack propagation and interaction. Stress singularity near crack tip is reproduced by the singular elements. The singular-FEM is convenient and cost-effective, as the zone far away from crack tips is directly discretized using linear elements, in contrast to the quadratic or transition elements utilized in traditional FEM. Next, the proposed method is validated through benchmark study. Numerical results demonstrate that the superiority of the singular-FEM, which combines the merits of low cost and high accuracy. Then, the mechanics of crack growth are explored in more complex scenarios, accounting for the effects of crack interaction, loading condition and heterogeneity on crack trajectory, stress field and energy release rate. The findings reveal that the combined effect of heterogeneity and crack interaction plays a critical role in the phenomenon of crack growth, and the proposed method is capable of effectively modeling the process.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"246 1","pages":"77 - 99"},"PeriodicalIF":2.2,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10704-024-00771-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140315135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fracture, my friend: the cutting of gummy metals 断裂，我的朋友：切割胶质金属

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-03-25 DOI: 10.1007/s10704-024-00767-6

Anirudh Udupa, Debapriya Pinaki Mohanty, James B. Mann, Koushik Viswanathan, Jason M. Davis, Srinivasan Chandrasekar

{"title":"Fracture, my friend: the cutting of gummy metals","authors":"Anirudh Udupa, Debapriya Pinaki Mohanty, James B. Mann, Koushik Viswanathan, Jason M. Davis, Srinivasan Chandrasekar","doi":"10.1007/s10704-024-00767-6","DOIUrl":"10.1007/s10704-024-00767-6","url":null,"abstract":"<div><p>The study of fracture mechanics is usually within the paradigm of a failure mode that needs to be avoided. However, both in nature and in modern technology, there exist several situations where an ability to fracture is essential. In this work, we consider the problem of machining highly ductile and strain-hardening metals, such as annealed Cu, Al and Ta. These metals are known by the moniker “gummy metals” due to the large forces and poor surface finish associated with machining them. We investigate a chemo-mechanical technique involving adsorption of organic monolayers on the metal surfaces that causes the metals to become relatively brittle. This transition from ductile to brittle results in > 50% drop in the cutting force and an order of magnitude improvement in the surface finish. Molecular dynamics simulations of the phenomenon show the organic monolayers impose a surface stress on the metal surface which results in arresting of the dislocations close to the surface. The results suggest that a deeper understanding of the underlying mechanism has implications in environment-assisted cracking, stress-corrosion cracking and hydrogen embrittlement.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"247 2","pages":"151 - 166"},"PeriodicalIF":2.2,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140299014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0